A computer program was written to produce lateral and frontal views of the brain [human] from transverse slices generated by the EMI scanner. The resulting images markedly facilitated the planning of surgical exploration of intracranial lesions by graphically indicating their locations in a manner consistent with the familiar lateral and frontal radiographs. The image was formed from a distribution of the average EMI density number along the direction of projection. Incorporated in the program was a bone-searching algorithm which eliminated density from the cranium and extracranial air and water so that only brain was seen in the projection. Several enhancement algorithms were provided to enhance pathology. The images were displayed on the existing EMI viewer, where they were available for inspection and photography.